Prescription Phentermine

Phentermine is a generic weight loss diet pill sold under trade names such as Adipex-P, Fastin, Ionamin, Qysmia and Oby-trim and needs prescription from physician or qualified pharmacist. Phentermine is an FDA approved drug which makes it more credible than the rest of the weight loss drugs available over the counter. It is specifically designed for patients who are diabetic and hypertensive due to an alarming Body Mass Index (BMI).


Phentermine hydrochloride is the only active ingredient is this diet pill, the inactive ingredients are:

  • Crospovidone
  • Dibasic calcium phosphate dihydrate
  • Magnesium stearate
  • Povidone
  • Propylene glycol
  • FD&C Blue #1 Aluminum Lake
  • Shellac glaze
  • Titanium dioxide

How Prescription Phentermine works

Prescription Phentermine is a short-term drug used for a maximum of 12 weeks. It inhibit the hunger stimulation by blocking impulses at hypothalamus of brain.

Intake Instructions & Dosage

Phentermine is prescribed for adults only as one tabled a day (37.5mg) on an empty stomach, some people may be prescribed only half a tablet per day, a good diet and regular physical activity is also recommended for greater results.


People allergic to amphetamines and cold medicines should keep away from Phentermine. It should not be taken with other diet drugs as it might cause pulmonary hypertension issues. Do not use Phentermine if you have taken an MAO (monoamine oxidase inhibitor) in the past two weeks as serious side effects can occur. Pregnant and/or nursing mothers and patients with a history of heart disease must not take Phentermine. Patients on insulin and hypoglycemic medications are required to reduce the dosage of those medicines before starting Phentermine.

Side Effects

As it is sympathomimetic agent side effects may include high blood pressure, dizziness, restlessness, thirst due to excess loss of fluids and nervousness.